Sugar cooler and granulator



(No Mode1.)'

AJ. 8v F. FIRMENICH.

r SUGAR COOLER AND GrRANULA EQH'I 1 #v u N0..261,819. Pate'iflsgshsggfybgg, 1882.

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jointly invented certain new and useful Imthe two shells being united on their upper end said tube J being fixed to a horizontal pipe,

tion of parts and details ot' construction, as hereinafter first fully set forthand described,

letters of reference in all the figures.

UNITED STATES PATENT OEEICE.

SUGAR COOLER AND GRANULATOR.

SPECIFICATION formingpart of Letters Patent No. 261,819, dated July 25, 1882.

Application filed May 16, 1882. (No model.)

To all whom it may concern Be it known that we, J osEPE FIRMENIcH and FRANK FIEMENIGH, of Buffalo, in the county of Erie and State of New York. have provemen ts on a Sugar Cooler and Granulator 5 and we do hereby declare that the following description of our said invention,` taken in connection with the accompanying sheet of drawings, forms a full, clear, and exact specification, which will enable others skilled in the art to which it appertains to make and use the same. l

This invention has general reference to sugar coolers and granulators; and it consists essentially in the novel and peculiar combinaand then pointed out in the claims.

In the drawings already mentioned, which serve to illustrateour said invention more fully, Figure l is a side' elevation of a sugar cooler and granulator constructed in accordance with our invention. Fig. 24is a longitudinal sectional elevation. Fig. 3 is plan, and Fig. 4 is a sectional elevation, of the lower portion of the device illustrated in Fig. l.

Like parts are designated by corresponding A in these drawings designates a cylindrical vessel of proper dimensions, composed oi' an exterior shell, A', and an interior cylinder, A",

by meanslof a head or collar, O, and on their lower end to a conical part or section, D, the space between the two shells being constructed to receive the frigoritlc or caloritc medium, while the interior ofthe inner shell is arranged to receive the sugar from the vacuum-pan.

In constructing this vessel A we prefer to flatten the exterior shell, A', at l), as shown in Figs. l and 4, and to rivet the inner shell to 'the outer one on their lower ends in any suitable and convenient manner; but, if desired, they maybe constructed, as shown in Figs. 2 and 3, by securing the lower ends of the conical portions of said shells to a tube, J,

K, havin gi'aucets or other properly-constructed discharge-valves, L, for the escape ot' the liquid sugar from the interior of the vessel A. As already lnentioned, we prefer the construction shown in Figs. land 4, for the reasonu special view to its rapid dischargeof its conA tents after the temperature of the liquor has been lowered to the proper point. Otherwise the liquor will stiien and granulate, and thus be prevented from emptying. For this reason atbottomed vessels we have found to be entirelyimpraoticable and useless, and to overcome this trouble we have desi gnedour present cooler, &c., in which we Hatten the outer circular shell,vso as to produce a graduallyde creasing space, which will offer the least frictional resistance to the dischargin g-liquor, and at the same time allow of its rapid and entire emptying.

Within the inner shell, A", we provide two upright shafts, N N', running in opposite di rections, with their lower ends in suitably-arranged steps or bearings P' Q', respectively, and on their upper end in proper guides or bearings fastened either to the apparatus or to the ceiling above the same. Upon these shafts N N' are suitably disposed a series of beaters or sticks,7 Q, and one or more agitators or propeller-wheels, I), the object of which is to thoroughly agitate the sugar in or-l der to facilitate its rapid reduction in tempera` ture, and thereby to initiate the granulation or crystallization of the sugar. i

In operation the apparatus is suspended through the floor below the vacuum-pan by means of a collar or other proper device, B, iu such a manner that the liquor as discharged from the said pan can readily enter the cooler and granulator. Now a supply of cold water or any other refrigeratin g medium is passed in between the shells A A' through the valve E,

and discharged therefrom by the valveF on the upper end of the apparatus, the sugar being IOO in the meantime thoroughly agitated by the beaters Q, driven by the pulleys R in any suitable manner. If, for any reason whatever, there should be a tendency to freeze the sugar in the cooler, the cold water is rapidly discharged from the apparatus through the blow oft valve Gr, and steam admitted through the supply-pipe H on the upper (or other portion) end of the machine, the water of condensation being discharged from the blow-off valve Gr andthe sugar-liquor suficiently elevated in temperature to enable its bein g discharged from the cooler.

By constructing a cooler and granulator as shown in Figs. l and 4L we derive, in addition to the results already mentioned, the further advantage that two trucks may at once be `passed under the apparatus and the sugar4 emptied into two, or even more, pans atene and the same time, thereby greatly facilitating the discharging of the cooler and lessening lthe chances othaviug a portion of the charge frozen in the cooler.

Having thus fully described our invention, we claim as new and desire to secure to us by Letters Patent of the United States-- 1. The combination, in a sugar cooler and' granulator, with the outer shell, A', having on its lower end the ilattened portions D and discharge gates or valves in the corners of said flattened portion, of the inner shell, A", eX- tending to near the lower end of said exterior shell, the supply-pipes E and H, dischargepipes E and G, and the beater shaft or shafts N, with the agitators Q, the whole being constructed for operation substantially in the manner as and for the-object specified.

2. In sugar coolers and granulators, an eX- terior shell, A', having its lower end flattened and tapered off, so as to gradually contract the interior space in said shell on two opposite sides, as specilied,and provided with dischargevalves in the lowest points of said flattened and tapering portion, substantially as and for the purpose stated.

3. In sugar coolers and granulators, two shells, as described, the outer one being iattened or contracted on its lower end and pro- `vided with discharge valves or gates in the corners, substantially as specied.

'4. In sugar coolers and granulators, two shells, as described, contracted at thelower end,

as speciiied,and provided with discharge-valves at the lowest part, two series of agitators or beaters revolving in opposite directions within the inner shell, supply-pipes for the frigoritic and caloritic media, and two sets of means for discharging the former medium, as and for the object stated.

5. In sugar coolers and granulators, an eX- terior shell, A', having its lower end flattened and tapered off, s0 as to gradually contract the interior space in said shell, substantially as specified, and provided with dischargevalves in the lowest points, in combination,

with suitable means for heating and cooling (or either) the interior of said shell, substantially in the manner as and for the object speciiied.

In testimony that We claim the foregoing as our invention We have hereto set our hands in the presence of two subscribing witnesses.

J. FIRMENIGH. FRANK FIRMENICH.

Attest:

MICHAEL J. STARK, J oHN C. DUERR. 

